US8670662B2 - Evaluating the position of an optical fiber disturbance - Google Patents
Evaluating the position of an optical fiber disturbance Download PDFInfo
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- US8670662B2 US8670662B2 US12/295,784 US29578407A US8670662B2 US 8670662 B2 US8670662 B2 US 8670662B2 US 29578407 A US29578407 A US 29578407A US 8670662 B2 US8670662 B2 US 8670662B2
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Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices
Abstract
Description
Claims (14)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06251880.8 | 2006-04-03 | ||
EP06251880 | 2006-04-03 | ||
EP06251880 | 2006-04-03 | ||
PCT/GB2007/001188 WO2007113527A1 (en) | 2006-04-03 | 2007-03-30 | Evaluating the position of a disturbance |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090274456A1 US20090274456A1 (en) | 2009-11-05 |
US8670662B2 true US8670662B2 (en) | 2014-03-11 |
Family
ID=36782298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/295,784 Active 2029-05-30 US8670662B2 (en) | 2006-04-03 | 2007-03-30 | Evaluating the position of an optical fiber disturbance |
Country Status (5)
Country | Link |
---|---|
US (1) | US8670662B2 (en) |
EP (1) | EP2002219B1 (en) |
CN (1) | CN101410696B (en) |
CA (1) | CA2647173A1 (en) |
WO (1) | WO2007113527A1 (en) |
Cited By (6)
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US20120273269A1 (en) * | 2008-08-20 | 2012-11-01 | Rinzler Charles C | Long distance high power optical laser fiber break detection and continuity monitoring systems and methods |
US20140140695A1 (en) * | 2011-06-20 | 2014-05-22 | British Telecommunications Public Limited Company | Communications network |
US9281893B2 (en) | 2013-10-23 | 2016-03-08 | Lumentum Operations Llc | In-service monitoring of a fiberoptic network |
WO2019018894A1 (en) | 2017-07-26 | 2019-01-31 | Terra15 Pty Ltd | Distributed optical sensing systems and methods |
US10892822B2 (en) | 2017-02-01 | 2021-01-12 | British Telecommunications Public Limited Company | Optical fiber event location |
US11316593B2 (en) | 2018-01-09 | 2022-04-26 | British Telecommunications Public Limited Company | Optical DWDM data and QKD transmission system |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0322859D0 (en) | 2003-09-30 | 2003-10-29 | British Telecomm | Communication |
GB0407386D0 (en) | 2004-03-31 | 2004-05-05 | British Telecomm | Monitoring a communications link |
GB0421747D0 (en) | 2004-09-30 | 2004-11-03 | British Telecomm | Distributed backscattering |
US7848645B2 (en) * | 2004-09-30 | 2010-12-07 | British Telecommunications Public Limited Company | Identifying or locating waveguides |
JP4782798B2 (en) | 2004-12-17 | 2011-09-28 | ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | Network evaluation |
EP1708388A1 (en) * | 2005-03-31 | 2006-10-04 | British Telecommunications Public Limited Company | Communicating information |
EP1713301A1 (en) | 2005-04-14 | 2006-10-18 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for communicating sound over an optical link |
EP1989797B1 (en) | 2006-02-24 | 2011-04-13 | BRITISH TELECOMMUNICATIONS public limited company | Sensing a disturbance |
EP1826924A1 (en) * | 2006-02-24 | 2007-08-29 | BRITISH TELECOMMUNICATIONS public limited company | Sensing a disturbance |
CA2643345A1 (en) | 2006-02-24 | 2007-08-30 | British Telecommunications Public Limited Company | Sensing a disturbance |
CA2647173A1 (en) | 2006-04-03 | 2007-10-11 | British Telecommunications Public Company Limited | Evaluating the position of a disturbance |
US8345229B2 (en) * | 2009-09-28 | 2013-01-01 | At&T Intellectual Property I, L.P. | Long distance optical fiber sensing system and method |
GB0917150D0 (en) * | 2009-09-30 | 2009-11-11 | Qinetiq Ltd | Phase based sensing |
CN102208942B (en) * | 2011-01-07 | 2015-02-11 | 大豪信息技术(威海)有限公司 | Method of optical cable range finding with optical cable tracker, and optical cable tracker |
CN102494756A (en) * | 2011-12-26 | 2012-06-13 | 东南大学 | Single-light source distributed optical fiber micro-vibration sensing and positioning device |
CN103499383B (en) * | 2013-09-06 | 2016-01-13 | 北京航天时代光电科技有限公司 | A kind of auto-correlation localization method improving optical fibre vibration sensor positioning precision |
KR101816675B1 (en) * | 2014-06-23 | 2018-01-11 | 광주과학기술원 | Optical Characteristics Measuring Apparatus Using Interrogation Optical Fiber, Optical Fiber Sensor System Comprising the Same and Method for Measuring Optical Characteristics |
KR101605837B1 (en) * | 2014-12-24 | 2016-03-23 | 주식회사 쏠리드 | Optical Fiber Monitor Using Tunable Lasers |
US9678044B2 (en) | 2015-03-18 | 2017-06-13 | Baker Hughes Incorporated | Method of measuring acoustic energy impinging upon a cable |
ES2596260B1 (en) * | 2015-06-05 | 2017-10-19 | Universidad De Alcalá | SYSTEM AND METHOD OF DISTRIBUTED CHARACTERIZATION OF DISPERSION PROFILE OF AN OPTICAL FIBER |
GB201515505D0 (en) * | 2015-09-01 | 2015-10-14 | Optasense Holdings Ltd | Distributed fibre optic sensing |
ES2622354B1 (en) * | 2015-11-30 | 2018-04-10 | Universidad De Alcalá | DISTRIBUTED CHARACTERIZATION SYSTEM AND METHOD OF REFRACTION INDEX VARIATIONS OF AN OPTICAL FIBER |
EP3581962A1 (en) * | 2018-06-11 | 2019-12-18 | Hexagon Technology Center GmbH | Dual beam fmcw distance measuring method with compensation of a speed-dependent distance measuring fault |
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CN101410696B (en) | 2011-01-05 |
US20090274456A1 (en) | 2009-11-05 |
CA2647173A1 (en) | 2007-10-11 |
WO2007113527A1 (en) | 2007-10-11 |
EP2002219B1 (en) | 2014-12-03 |
EP2002219A1 (en) | 2008-12-17 |
CN101410696A (en) | 2009-04-15 |
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